Sit down to pee! Couldn't find such a sign, and I love the little floor stands. Thanks to Gaellafond for making this possible.

Customized version of https://www.thingiverse.com/thing:2701137

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=2701137

Using the following options:

clearance = 0.5
string1 = Please
string2 = sit to
string3 = PEE!
string4 =
textScale = 0.7
textOffset = -13
textLineHeight = 16
$fn = 40
standWidth = 40
standHeight = 62
standDepth = 5
standCornerRadius = 2.5
standHandleWidth = 20
standHandleHeight = 3.5
standHandleOffset = 3.5
frameWidth = 36
frameHeight = 51
frameBorder = 0.8
frameDepth = 1.2
frameOffset = 3.6
legLength = 7.5
legWidth = 10
legCutAngle = 23
hingeSideWidth = 7.6
hingeMiddleWidth = 11
hingeLength = 7.5
armLength = 40
armWidth = 4
armThickness = 3
minimumThickness = 0.4
hingeConeAngle = 60
diffExtra = 0.1